Light ray projector,申请号US19250031419-传众专利搜索

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发明名称	Light ray projector
摘要
申请公布号	US1884603(A)	申请公布日期	1932.10.25
申请号	US19250031419	申请日期	1925.05.19
申请人	INTERNATIONAL PROJECTOR CORPORATION	发明人	DINA AUGUSTO
分类号	G03B21/20	主分类号	G03B21/20
代理机构		代理人
主权项
地址

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